gpg.md (4164B)
1 # gpg 2 3 ## encrypt file 4 ``` 5 gpg -c <filename> 6 ``` 7 8 ## decrypt file 9 ``` 10 gpg <filename>.gpg 11 ``` 12 13 ## clearsign message 14 ``` 15 gpg --default-key <key_id> -o <output_file> --clearsign <input_file> 16 ``` 17 18 ## search keys 19 ``` 20 gpg --search <string> 21 ``` 22 23 ## adding notations 24 i have used this for setting [keyoxide][] proofs 25 ``` 26 ──── ─ gpg --edit-key pyratebeard 27 Secret key is available. 28 29 sec rsa4096/0xC7877C715113A16D 30 created: 2016-08-18 expires: never usage: SC 31 trust: ultimate validity: ultimate 32 ssb rsa2048/0xA8CA96DB91B17F70 33 created: 2016-08-18 expires: 2024-08-16 usage: E 34 ssb rsa2048/0x20E945DD7FC543B7 35 created: 2016-08-18 expires: 2024-08-16 usage: SA 36 [ultimate] (1). pyratebeard <root@pyratebeard.net> 37 [ultimate] (2) pyratebeard <pyratebeard@protonmail.com> 38 39 gpg> uid 1 40 41 sec rsa4096/0xC7877C715113A16D 42 created: 2016-08-18 expires: never usage: SC 43 trust: ultimate validity: ultimate 44 ssb rsa2048/0xA8CA96DB91B17F70 45 created: 2016-08-18 expires: 2024-08-16 usage: E 46 ssb rsa2048/0x20E945DD7FC543B7 47 created: 2016-08-18 expires: 2024-08-16 usage: SA 48 [ultimate] (1)* pyratebeard <root@pyratebeard.net> 49 [ultimate] (2) pyratebeard <pyratebeard@protonmail.com> 50 51 gpg> notation 52 Enter the notation: proof@ariadne.id=irc://irc.darkscience.net/pyratebeard 53 Current notations for user ID "pyratebeard <root@pyratebeard.net>": 54 proof@ariadne.id=https://harbour.cafe/@pyratebeard 55 proof@ariadne.id=dns:pyratebeard.net?type=TXT 56 proof@ariadne.id=irc://irc.libera.chat/pyratebeard 57 Adding notation: proof@ariadne.id=irc://irc.darkscience.net/pyratebeard 58 59 sec rsa4096/0xC7877C715113A16D 60 created: 2016-08-18 expires: never usage: SC 61 trust: ultimate validity: ultimate 62 ssb rsa2048/0xA8CA96DB91B17F70 63 created: 2016-08-18 expires: 2024-08-16 usage: E 64 ssb rsa2048/0x20E945DD7FC543B7 65 created: 2016-08-18 expires: 2024-08-16 usage: SA 66 [ultimate] (1)* pyratebeard <root@pyratebeard.net> 67 [ultimate] (2) pyratebeard <pyratebeard@protonmail.com> 68 69 gpg> save 70 ``` 71 72 to upload the new key to a keyserver incant 73 ``` 74 gpg --export root@pyratebeard.net | curl -T - https://keys.openpgp.org 75 ``` 76 77 view the notations 78 ``` 79 gpg --edit-key pyratebeard 80 Secret key is available. 81 82 sec rsa4096/0xC7877C715113A16D 83 created: 2016-08-18 expires: never usage: SC 84 trust: ultimate validity: ultimate 85 ssb rsa2048/0xA8CA96DB91B17F70 86 created: 2016-08-18 expires: 2024-08-16 usage: E 87 ssb rsa2048/0x20E945DD7FC543B7 88 created: 2016-08-18 expires: 2024-08-16 usage: SA 89 [ultimate] (1). pyratebeard <root@pyratebeard.net> 90 [ultimate] (2) pyratebeard <pyratebeard@protonmail.com> 91 92 gpg> uid 1 93 94 sec rsa4096/0xC7877C715113A16D 95 created: 2016-08-18 expires: never usage: SC 96 trust: ultimate validity: ultimate 97 ssb rsa2048/0xA8CA96DB91B17F70 98 created: 2016-08-18 expires: 2024-08-16 usage: E 99 ssb rsa2048/0x20E945DD7FC543B7 100 created: 2016-08-18 expires: 2024-08-16 usage: SA 101 [ultimate] (1)* pyratebeard <root@pyratebeard.net> 102 [ultimate] (2) pyratebeard <pyratebeard@protonmail.com> 103 104 gpg> showpref 105 [ultimate] (1)* pyratebeard <root@pyratebeard.net> 106 Cipher: AES256, AES, 3DES 107 AEAD: 108 Digest: SHA512, SHA256, SHA1 109 Compression: ZLIB, ZIP, Uncompressed 110 Features: MDC, AEAD, Keyserver no-modify 111 Notations: proof@ariadne.id=irc://irc.libera.chat/pyratebeard 112 proof@ariadne.id=dns:pyratebeard.net?type=TXT 113 proof@ariadne.id=https://harbour.cafe/@pyratebeard 114 proof@ariadne.id=irc://irc.darkscience.net/pyratebeard 115 116 gpg> quit 117 ``` 118 119 * getting "There is no assurance this key belongs to the named user" error 120 * could be from copying keys to a new machine 121 ``` 122 gpg --edit-key <key_id> 123 gpg> trust 124 # select trust level 125 ``` 126 127 ## useful links 128 - [gpg signing][] - traditional vs. pgp/mime 129 - how to [verify software][] 130 131 [gpg signing]: https://www.phildev.net/pgp/pgp_clear_vs_mime.html 132 [verify software]: https://www.phildev.net/pgp/pgp_clear_vs_mime.html 133 [keyoxide]: https://keyoxide.org/7A8E129DBE679DABAEB337C5C7877C715113A16D